140 lines
3.7 KiB
C++
140 lines
3.7 KiB
C++
// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
|
|
|
|
#pragma once
|
|
|
|
#include "RendererPass.h"
|
|
#include "Engine/Graphics/GPUPipelineStatePermutations.h"
|
|
|
|
#define GB_RADIUS 6
|
|
#define GB_KERNEL_SIZE (GB_RADIUS * 2 + 1)
|
|
|
|
/// <summary>
|
|
/// Post processing rendering service
|
|
/// </summary>
|
|
class PostProcessingPass : public RendererPass<PostProcessingPass>
|
|
{
|
|
private:
|
|
|
|
PACK_STRUCT(struct Data {
|
|
float BloomLimit;
|
|
float BloomThreshold;
|
|
float BloomMagnitude;
|
|
float BloomBlurSigma;
|
|
|
|
Vector3 VignetteColor;
|
|
float VignetteShapeFactor;
|
|
|
|
Vector2 InputSize;
|
|
float InputAspect;
|
|
float GrainAmount;
|
|
|
|
float GrainTime;
|
|
float GrainParticleSize;
|
|
int32 Ghosts;
|
|
float HaloWidth;
|
|
|
|
float HaloIntensity;
|
|
float Distortion;
|
|
float GhostDispersal;
|
|
float LensFlareIntensity;
|
|
|
|
Vector2 LensInputDistortion;
|
|
float LensScale;
|
|
float LensBias;
|
|
|
|
Vector2 InvInputSize;
|
|
float ChromaticDistortion;
|
|
float Time;
|
|
|
|
float Dummy1;
|
|
float PostExposure;
|
|
float VignetteIntensity;
|
|
float LensDirtIntensity;
|
|
|
|
Color ScreenFadeColor;
|
|
|
|
Matrix LensFlareStarMat;
|
|
});
|
|
|
|
PACK_STRUCT(struct GaussianBlurData {
|
|
Vector2 Size;
|
|
float Dummy3;
|
|
float Dummy4;
|
|
Vector4 GaussianBlurCache[GB_KERNEL_SIZE]; // x-weight, y-offset
|
|
});
|
|
|
|
// Post Processing
|
|
AssetReference<Shader> _shader;
|
|
GPUPipelineState* _psThreshold;
|
|
GPUPipelineState* _psScale;
|
|
GPUPipelineState* _psBlurH;
|
|
GPUPipelineState* _psBlurV;
|
|
GPUPipelineState* _psGenGhosts;
|
|
GPUPipelineStatePermutationsPs<3> _psComposite;
|
|
|
|
GaussianBlurData _gbData;
|
|
Vector4 GaussianBlurCacheH[GB_KERNEL_SIZE];
|
|
Vector4 GaussianBlurCacheV[GB_KERNEL_SIZE];
|
|
|
|
AssetReference<Texture> _defaultLensColor;
|
|
AssetReference<Texture> _defaultLensStar;
|
|
AssetReference<Texture> _defaultLensDirt;
|
|
|
|
public:
|
|
|
|
/// <summary>
|
|
/// Init
|
|
/// </summary>
|
|
PostProcessingPass();
|
|
|
|
public:
|
|
|
|
/// <summary>
|
|
/// Perform postFx rendering for the input task
|
|
/// </summary>
|
|
/// <param name="renderContext">The rendering context.</param>
|
|
/// <param name="input">Target with rendered HDR frame to post process</param>
|
|
/// <param name="output">Output frame</param>
|
|
/// <param name="colorGradingLUT">The prebaked LUT for color grading and tonemapping.</param>
|
|
void Render(RenderContext& renderContext, GPUTexture* input, GPUTexture* output, GPUTexture* colorGradingLUT);
|
|
|
|
private:
|
|
|
|
GPUTexture* getCustomOrDefault(Texture* customTexture, AssetReference<Texture>& defaultTexture, const Char* defaultName);
|
|
|
|
/// <summary>
|
|
/// Calculates the Gaussian blur filter kernel. This implementation is
|
|
/// ported from the original Java code appearing in chapter 16 of
|
|
/// "Filthy Rich Clients: Developing Animated and Graphical Effects for Desktop Java".
|
|
/// </summary>
|
|
/// <param name="sigma">Gaussian Blur sigma parameter</param>
|
|
/// <param name="width">Texture to blur width in pixels</param>
|
|
/// <param name="height">Texture to blur height in pixels</param>
|
|
void GB_ComputeKernel(float sigma, float width, float height);
|
|
|
|
#if COMPILE_WITH_DEV_ENV
|
|
void OnShaderReloading(Asset* obj)
|
|
{
|
|
_psThreshold->ReleaseGPU();
|
|
_psScale->ReleaseGPU();
|
|
_psBlurH->ReleaseGPU();
|
|
_psBlurV->ReleaseGPU();
|
|
_psGenGhosts->ReleaseGPU();
|
|
_psComposite.Release();
|
|
invalidateResources();
|
|
}
|
|
#endif
|
|
|
|
public:
|
|
|
|
// [RendererPass]
|
|
String ToString() const override;
|
|
bool Init() override;
|
|
void Dispose() override;
|
|
|
|
protected:
|
|
|
|
// [RendererPass]
|
|
bool setupResources() override;
|
|
};
|